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【单选题】
The Rho protein is involved in the _____ stage of transcription. （ ）
A.
elongation
B.
termination
C.
post-transcriptional processing
D.
initiation
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【多选题】Regarding the cerebellum's regulation of body movement, the following descriptions are correct（ ）
A.
Intentional tremor may occur after damage
B.
Maintain body balance
C.
Regulate muscle tension
D.
Coordinate voluntary movements
E.
Participate in the design and programming of voluntary movements
【多选题】What is correct in the following statements about pulmonary ventilation power （ ）
A.
The direct force is the change of intrapleural pressure
B.
The prime force is the relaxation and contraction of respiratory muscles
C.
The prime power is the change of pleural pressure
D.
Direct force is the difference between the pulmonary pressure and atmospheric pressure
E.
Direct force is the difference between the intrapulmonary pressure and the pleural pressure
【多选题】When excitable cells are stimulated（ ）
A.
Cells with different functions show different functional activities
B.
Bioelectric changes occur firstly, and then external functional changes occur
C.
Cells with different functions produce a common bioelectrical change called action potential
D.
The generation of action potential is also called excitation
E.
The action potential is caused by the depolarization of the membrane potential to the threshold potential
【多选题】The interactions between hormones are（ ）
A.
Mutual antagonism
B.
Synergy
C.
Competition
D.
Feedback
E.
Allow function
【单选题】Mitochondrial DNA replicates in（ ）
A.
dispersive replication
B.
D-loop replication
C.
reverse transcription
D.
conservative replication
【单选题】Which is NOT a final product of gene expression?（ ）
A.
mRNA
B.
protein
C.
rRNA
D.
tRNA
【单选题】The Shine-Dalgarno sequence is found on the ________. （ ）
A.
large ribosomal subunit
B.
mRNA
C.
small ribosomal subunit
D.
initiator tRNA
【多选题】During calm breathing, the phase when the pulmonary pressure is equal to atmospheric pressure is（ ）
A.
At the beginning of inhalation
B.
At the end of inhalation
C.
During exhalation
D.
At the beginning of exhalation
E.
At the end of exhalation
【多选题】The increase in systolic blood pressure during strenuous exercise is due to（ ）
A.
Increased stroke volume
B.
Increased heart rate
C.
Increased initial length of myocardium
D.
Increased venous return blood volume
E.
Increased myocardial contractility
【多选题】What should not be present in normal urine（ ）
A.
Glucose
B.
NaCl
C.
Urea
D.
Protein
E.
Red blood cells